Joseph linck



(No Model.)

J. "L1NGK. GOAL DRILL'ING MACHINE.

Patented Aprl` 12,1887.

,f1 N2. Q P1 H WITNESSES u) K IWT/Eamon d '7% 'f' Attorney.

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zontal section on line'zz'of Fig. l.

UNITED STATES PATENT OFFICE.

JOSEPH LINOK, OF SNODDYS MILLS, INDIANA, ASSIGNOR OF ONE-HALF TO MATTHEWARMSTRONG, OF SAME PLAGE.

' COAL-DRILLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 361,167, dated Aprill2, 1887.-

Application filed November' 1l, 1886. Serial No. 218,622. (No model.)

ings, and to letters or figures of reference marked thereon, which forma part of this specification.

This invention relatesto machines designed for the drilling or boring ofmetal or other substances, and more particularly to machines for mining.

The machine which I am about to describe may be arranged to be driven byhand or power, although I shall confineA myself to the plain descriptionof a hand-driven machine.

The objects of the invention are, first, to enable tlie drilling-tool tobe operated at various angles from a fixed base; second, to provide forthe ready removal of the driving-gear or feedingscrew for the purposesof repair or renewal; and, third, in minor objects, which will bespecificallyl set forth hereinafter.

With these objects in view the invention consists in novel features ofconstruction and combinations, to be fully described in the ensuingspecification, and claimed in the clauses at theelose thereof.

In the accompanying drawings, Figure l illustrates my improveddrilling-machine inl side elevation. Fig. 2' is a longitudinal sectionof the same. Fig.3 is a sectional detail of one of the driving-pinions.Fig. 4 is a hori- Fig. 5 is a detail of the feedingnut. Fig. Gis aperspective View of the base-frame.

Referring to the drawings, A designates the drill-spindle, provided, asis usual, with a socket at one end to receivea bit or tool, and with anexterior thread, by means ofwhich the tool is advanced or fed in itswork. The threaded portion of the spindle A is provided with a spline orgroove, a, for a purpose to be hereinafter explained. A two-partinteriorlythreaded sleeve, B, embraces the spindle A, and is provided atone side with a hub, B', upon which is journaled a beveled gear-wheel,C, and is also -provided with a lug, B2, by which it is connected to' asupporting-standard, S.

Mounted upon the spindle A, at each end of the sleeve B, are collars DD', the inner ends of which are provided with flanges Z d,engag 6o ingwith circular recesses b b in the sleeve B. These collars D D fit thespindle loosely and turn freely within the sleeve B; but to prevent therotation of said spindle with relation Y to the collars, the latter areprovided with feathers or keys al d3, engaging Athe spline or groove ain said shaft.

The collars D D have each an elongated hub, upon which are mounted torotate beveled pinions E E', the parts herein described being so 7oproportioned relatively that thev pinions E E will constantly mesh withthe gear-wheel C, hereinbefore referred to. f

The pinions E E are each provided interiorly-with ratchet-teeth c toengage springpawls cl*,earriedY by the collars D D; and theseratchet-teeth may be cut to face in the same or opposite directions,toenable the drill to be rotated in opposite directions or in butonedirection, as preferred. I prefer, however, that 8o these ratchet-teethbe so arranged that the bit or tool be rotated in one direction as it isadvanced in its work,land in the opposite direction for` withdrawal fromthe drill-hole, and in order that the operation of withdrawal may becarried on with greater rapidity than the operation of drilling Icontemplate making the pinion-say, for instance, E-which eon` trols theoperation of drilling, of greater diameter than the pinion controllingthe operation 9o of withdrawal. To accomplish this end, the teeth ofgear-wheel C should be of, say, double the length of the teeth ofpinions E E', in order that said pinions E E'may work at differentdistances from the center of the gearwheel C.

In order that the spindle A and collars D D may be removed for repair orother purposes,

I have constructed the sleeve Bof two sections joined together at oneside by ahinge-eonnecroo tion, b, the free ends of the hinged sectionsbeing secured together by a bolt or other suitable means; and in orderthat the Working end of the bit or tool may be raised or depressed Iconnect said sleeve B pivotally to its supportingstandard S, as shown. l

The lower end of the supportingstandard is swivelingly connected to abase-frame,T, which in the instance shown consists of a dat pieceprovided at suitable intervals with apertures t for the reception of thelower ends of the supporting-standard S, said base-piece being providedalso with one or more spurs designed to be driven into the door ofthemine facing the breast. These spurs, however, may be dispensed With andthe base-piece secured upon the floor of the mine by pegs driven throughthe apertures t not occupied by the lower end of thesupporting'standard.

'Ihe drilling mechanism may be actuated by a handcrauk, F, as shown, torotate the bit or tool in one direction; or, in lieu of said liandcrank,an oscillating hand-lever may be secured upon the hub c of the geanwheclCf, to give the tool an intermittent movement.

It Will be understood that I do not desire to coniine myself strictly tothe construction here shown, as many changes may be made withoutdeparting from the spirit of my invention, said changes coming moreproperly within the province of the skilled mechanic.

I claim- 1. In adrillingmachine, the combination of the threaded spindlehaving a longitudinal groove, an interiorly-threaded sleeve withextended ends having recesses b b formed therein, collars D D', withflanges which engage with the recesses b b, and keys which engage withthe groove ofthe spindle, and pawls attached to the 3. In adrilling-machine, the combination of 5o the threaded spindle A,'providedwith a lon gitudinal groove, a separable sleeve having 1n teriorscrew-threaded portions, end recesses, b b', and a projecting portionwhich serves as a bearing for the main gear-wheel, collars D D',

having Bauges d d', keys elz d, and springpawls which engage withratchet-teeth of the beveled pinions, and a crank-arm, F, the parisbeing organized substantially as shown.

4. In a drilling-machine, the combination of thc spindle, the sleeve,thecollars having their ends journaled in the sleeve, the pinionsmounted to turn in one direction on the collars, and the drivinggear-Wheel meshing with the pinions, substantially as described.

5. In a drilling-machine, the combination, substantially as before setforth, of the spindle, the sleeve, the collars having their inner endsjonrnaled in the sleeve and keyed to the spindle, the pinions E Ff,journaled on the outer ends of the collars, and thedriving gearwhcelmeshing with the pinions.

In testimony whereof I afiix my signature in presence oi' two witnesses.i i

JOSEPH LINCK. Witnesses:

FRANK Limon, MATTHEW ARMSTRONG.

